One of the largest tree-kangaroo, the Doria's weighs 6.5-14.5 kg, its length is 51-78 cm, with a long 44-66 cm tail. It has long dense brown fur with black ears and a pale brown or cream nonprehensile tail. It has large and powerful claws and a stocky build that gives it a bear-like appearance.

Its diet consists of various leaves, buds, flowers and fruits. The gestation period is about 30 days, after which, the single young remains in the mother's pouch for up to 10 months.

Doria's is listed as vulnerable. Its forest habitat is threatened by logging and forest clearance. Being large sized, it is also hunted for its meat.